Class notes
Chapter 15 - The Urinary System
- Course
- Institution
- Book
This document contains a summary + class notes of chapter 15 from the textbook essentials of human anatomy and physiology, almost everything is covered
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
More summaries for
-
Chapter 8 - The Special Senses
-
Class notes Anatomy And Physiology (HAPP111) Essentials of Human Anatomy & Physiology, Global Edition, ISBN: 9781292216201
-
The Role of Integument in Protecting the Body
Seller
Follow
williamboutros
Content preview
Chapter 15 - The Urinary SystemKidneys dispose of waste products in urine
Nitrogenous wastes
Toxins
Drugs
Excess ions
Kidneys’ regulatory functions include:
Production of renin to maintain blood pressure
Production of erythropoietin to stimulate red blood cell production
Conversion of vitamin D to its active form
Organs of the Urinary System
Kidneys
Location and structure · The kidneys are situated against the dorsal body wall in a retroperitone
Ureters
Slender tubes 25–30 cm (10–12 inches) attaching the kidney to the urinary bladder · Continuo
Urinary Bladder
Smooth, collapsible, muscular sac situated posterior to the pubic symphysis · Stores urine tem
1
, Urethra
Thin-walled tube that carries urine from the urinary bladder to the outside of the body by perist
Fluid, Electrolyte, and Acid-Base Balance
Blood composition depends on three factors
Diet
Cellular metabolism
Urine output
Kidneys have four roles in maintaining blood composition
2
, Excreting nitrogen-containing wastes (Urea, uric acid, ammonia,...)
Maintaining water balance of the blood
Maintaining electrolyte balance of the blood
Ensuring proper blood pH
Maintaining Water Balance of the Blood
Normal amount of water in the human body
Young adult females = 50%
Young adult males = 60%
Babies = 75%
The elderly = 45%
Water is necessary for many body functions, and levels must be maintained
Water occupies three main fluid compartments
Intracellular fluid (ICF)
Fluid inside cells
Accounts for two-thirds of body fluid
Extracellular fluid (ECF)
Fluids outside cells; includes blood plasma, interstitial fluid (IF), lymph, and transcellular
fluid
Plasma (blood) is ECF, but accounts for 3L of total body water
Links external and internal environments
3
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller williamboutros. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $5.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67096 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now